Datasheet

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POWER CONDITIONING - SMT
13
HMC1060LP3E
v00.1211
QUAD LOW NOISE HIGH PSRR
LINEAR VOLTAGE REGULATOR
3
3.5
4
4.5
5
5.5
10
4
10
5
10
6
10
7
PTAT Disabled
PTAT Enabled
OUTPUT VOLTAGE (V)
Rx RESISTANCE VALUE (Ohms)
Outputs
VR1, VR2, & VR3
Output VR4
Figure 16. Recommended HMC1060LP3E conguration for
supplying output voltage values greater than default.
[4]
Figure 17. HMC1060LP3E output voltage as a function of
resistance Rx for each output at 27°C.
[5]
Resistance, Rx, required to congure the HMC1060LP3E to the desired output voltage level for each output of the
HMC1060LP3E is shown in Figure 17. The exact value of Rx can be calculated using (EQ 2), where internal resistances
R1, R2, and band-gap voltage VREF are provided in the Output Conguration Table, and where VRx (x = 1,2,3,4) is
the desired output voltage level of each HMC1060LP3E output, as measured at the output pin.
12
21
1
x
RR
R
VRx
RR
VREF
=

−−


(EQ 2)
Conguration Examples
1. To set VR1 = VR2 = VR3 = 5 V in with PTAT Mode disabled, pins HV1, HV2 and HV3 are connected to GND. Note
that this conguration is only possible when PTAT Mode is disabled. If similar conguration is required with PTAT
Mode enabled, conguration provided in example 3 below must be followed.
2. To set VR1 = VR2 = VR3 = 1.8 V in with PTAT Mode disabled, external resistance Ry = 21 k shown in Figure
13 is required.
3. To set VR1 = 5 V in PTAT Mode, external resistance Rx = 40.3 k shown in Figure 16 is required. Please note that
for optimal temperature compensation, the 5 V level on VR1 can be achieved by connecting 5.7 k (40.3 k – R3)
from HV1 pin to GND (see Output Conguration Table for more detail). This is due to the fact that the internal
resistors of the HMC1060LP3E have a temperature coefficient of +270 ppm/°C. When the default output voltage
is modied by using an external resistor with a different temperature coefficient, the temperature behavior of the
respective output will differ from this specication, although the difference will likely be insignicant.
Application Information
The HMC1060LP3E ultra low noise regulator features market leading noise performance. It is capable of supplying all
of the power needs of Hittite’s Wideband PLL with Integrated VCOs products, such as the HMC830LP6GE, by itself.
This capability along with market leading noise performance make the HMC1060LP3E an ideal choice for supplying
Hittite’s broad range of PLL with Integrated VCOs products.
Figure 18 shows a noise comparison between the HMC1060LP3E and a standard off-the-shelf low noise DC power
supply. It illustrates the superior noise performance of the HMC1060LP3E at most frequencies.
[4] Example shows the conguration of only VR1 output of the HMC1060LP3E. Other outputs are congured in exactly the same way. VDD input is
limited to 5.6 V maximum and Output Voltage + 300 mV minimum.
[5] This curve is accurate only in cases where output voltage greater than default is required. Output voltage is limited to 5.2 V maximum for each
output.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: [phone] • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
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